Projection of input dataset and current location appear to match.
Proceeding with import...
100%
CREATING SUPPORT FILES FOR smile.red
SETTING GREY COLOR TABLE FOR smile.red (8bit, full range)
100%
CREATING SUPPORT FILES FOR smile.green
SETTING GREY COLOR TABLE FOR smile.green (8bit, full range)
100%
CREATING SUPPORT FILES FOR smile.blue
SETTING GREY COLOR TABLE FOR smile.blue (8bit, full range)
100%
CREATING SUPPORT FILES FOR smile.alpha
SETTING GREY COLOR TABLE FOR smile.alpha (8bit, full range)
On Fri, Jan 21, 2005 at 03:23:48AM +0100, Stefan Paulick wrote:
When importing the attached png into a 50x50 xy-Location, the region
settings become negative. With former r.in.png, they were positive.
*confused*
Here is what the source code says:
raster/r.in.gdal/main.c
/*
* r.in.gdal imports many GIS/image formats into GRASS utilizing the GDAL
* library
*
* copyright of this file
* Author: Frank Warmerdam
*
* Added optional GCP transformation: Markus Neteler 10/2001
* TODO: most unreferenced formats are read in with negative coordinates - desired??
*/
That's one of the shoals driving unexperienced users into deepest depression - displaying the imported stuff does show a blank screen which may mislead to the opinion that the import failed: wrong image format, gdal not working, dunno whatever!
Frank: Is it a man's task to get positive readings?
If yes, I would love to see some kind of information/warning out of r..in.gdal; maybe combined with a hint how to solve. it. Should do, even for me...:_))
/Stefan
Markus Neteler schrieb:
On Fri, Jan 21, 2005 at 03:23:48AM +0100, Stefan Paulick wrote:
When importing the attached png into a 50x50 xy-Location, the region settings become negative. With former r.in.png, they were positive. *confused*
Here is what the source code says:
raster/r.in.gdal/main.c
/*
* r.in.gdal imports many GIS/image formats into GRASS utilizing the GDAL
* library
*
* copyright of this file
* Author: Frank Warmerdam
*
* Added optional GCP transformation: Markus Neteler 10/2001
* TODO: most unreferenced formats are read in with negative coordinates - desired??
*/
That's one of the shoals driving unexperienced users into deepest
depression - displaying the imported stuff does show a blank screen
which may mislead to the opinion that the import failed: wrong image
format, gdal not working, dunno whatever!
Regardless of this "feature", all tutorials should really be mentioning
the use of 'g.region raster=newmap' before displaying a new map ...
> That's one of the shoals driving unexperienced users into deepest
> depression - displaying the imported stuff does show a blank screen
> which may mislead to the opinion that the import failed: wrong image
> format, gdal not working, dunno whatever!
Regardless of this "feature", all tutorials should really be mentioning
the use of 'g.region raster=newmap' before displaying a new map ...
It's more likely that they should be mentioning the use of r.region to
set the map's boundaries.
A blank screen is usually caused by the map being in the wrong place,
not the region.
Glynn Clements writes:
> Hamish wrote:
>
> > > That's one of the shoals driving unexperienced users into deepest
> > > depression - displaying the imported stuff does show a blank screen
> > > which may mislead to the opinion that the import failed: wrong image
> > > format, gdal not working, dunno whatever!
> >
> > Regardless of this "feature", all tutorials should really be mentioning
> > the use of 'g.region raster=newmap' before displaying a new map ...
>
> It's more likely that they should be mentioning the use of r.region to
> set the map's boundaries.
Even better: r.in.gal should set the region unless you specify the
-nr option.
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On Mon, Jan 24, 2005 at 11:56:53AM +1300, Hamish wrote:
> That's one of the shoals driving unexperienced users into deepest
> depression - displaying the imported stuff does show a blank screen
> which may mislead to the opinion that the import failed: wrong image
> format, gdal not working, dunno whatever!
Regardless of this "feature", all tutorials should really be mentioning
the use of 'g.region raster=newmap' before displaying a new map ...
(the new GRASS book does)
Suggestion: d.vect tell us if all vectors are outside the
current region. Can't we do the same at least for the raster
bounding box?
